For many of these websites, you can make your own quizzes or browse and use quizzes that other people have made. Alternatively, if your school allows students to set up accounts with external websites, get your students to make their own quizzes.
Quizlet and Quizalize
Finally, Hot Potatoes is free downloadable software which lets you create quizzes (e.g. drag and drop matching, crosswords, gap fills) easily, and then publish them online (e.g. in your college's virtual learning environment). It looks quite old-fashioned nowadays, but the quizzes work very well for language practice as homework and you can play with the colours and fonts to make it a little more appealing.